Priming valve for internal combustion engines



FIG. 1 is a side elevational view of a priming valve for internal combustion embodying my new design, the opposite side being a mirror image of the side shown;

FIG. 2 is a right end elevational view thereof;

FIG. 3 is a left end elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a priming valve for internal combustion engines, as shown and described. 